public Terrain(Game game, string heightmap, string[] textures, Camera3D camera)
: base(game)
{
if (textures.Length < 4)
throw new ArgumentException("Need four terrain textures.");
this.asset = heightmap;
this.textureAssets = textures;
this.Camera = camera;
}
public GameWorld3D(Game game)
: base(game)
{
_owner = game;
_gameObjects = new List<GameObject3D>();
Camera = new Camera3D(game.GraphicsDevice.Viewport.AspectRatio);
Camera.Position = new Vector3(1, 1, 10);
_debugEffect = new BasicEffect(game.GraphicsDevice);
DrawWorld = true;
DebugMode = false;
ForceUnload = false;
}
public float Rotate(float speed, KeyboardState keyboardState, Camera3D Camera)
{
//we cannot turn while not moving
if (speed > 0)
{
if (keyboardState.IsKeyDown(Keys.Left))
{
rotation += 0.96f;
//camera rotation 630.0f equals 360 degrees of rotation
Camera.Rotate(-1.68f, 0.0f);
}
if (keyboardState.IsKeyDown(Keys.Right))
{
rotation -= 0.96f;
//camera rotation 630.0f equals 360 degrees of rotation
Camera.Rotate(1.68f, 0.0f);
}
}
return rotation;
}
public void update(GameTime gametime, KeyboardState keyboardState, Camera3D Camera)
{
//set distance to object, higher speed means a slightly further off camera
float CameraDistance = 6.0f + speed * 15;
//calculates x and z distance to the object and places the camera directly behind the model
Vector3 CameraRelativePosition = new Vector3(CameraDistance * (float)Math.Sin(MathHelper.ToRadians(RotateY + adjustCamera)), 2.7f, CameraDistance * (float)Math.Cos(MathHelper.ToRadians(RotateY + adjustCamera)));
Camera.Position = Position + CameraRelativePosition;
//calculate speed
speed = Physics.update(speed, keyboardState, gametime);
//if on obstacle has been hit, decrease speed
speed = onObstacleHit(speed, gametime);
//check if powerup is available and use boost
speed = useSpeedPower(speed, gametime);
//calculate rotation of object and camera
RotateY = Physics.Rotate(speed, keyboardState, Camera);
//rotate front wheels horizontally
steerFrontWheels(keyboardState);
//rotationspeed of the four wheels
rotatiesnelheid = speed * 0.5f;
//set rotation of specific mesh
SetMeshRotationZ("voorwiellinks", rotatie += rotatiesnelheid);
SetMeshRotationZ("voorwielrechts", rotatie);
SetMeshRotationZ("achterwiellinks", rotatie + 180.0f);
SetMeshRotationZ("achterwielrechts", rotatie + 180.0f);
benzineInTank = benzine + z;
if(benzineInTank < 0)
{
if (speed > 0)
{
speed -= 0.005f;
}
else
{
speed = 0;
}
}
//x,z position relative to rotation
z -= speed * (float)Math.Cos(MathHelper.ToRadians(RotateY));
x -= speed * (float)Math.Sin(MathHelper.ToRadians(RotateY));
//roadbounds
if (x > 5)
{
x = 5;
speed *= 0.999f;
}else if( x < -5)
{
x = -5;
speed *= 0.999f;
}
if (speed > 0)
{
AudioFactory.PlayOnceChangePitch("speed2", speed * 0.5f);
}
//updates the position with the new x and z values
Position = new Vector3(x, y, z);
}